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any one of a large group of bipedal Upper Cretaceous dinosaurs of the genus Anatosaurus, Maiasaura, Edmontosaurus, and related genera: partly aquatic, with a duck-billed skull and webbed feet 鸭嘴龙 (Also called duck-billed dinosaur)
The causeofhadrosaurcancerremainsamystery today, butdinosaurfossils arehelpingunlocksecrets of diseases millions of years old. Whoknowswhatelsethey'llreveal.
Studies of the skin from across the fossil show that the skin was thinner toward the flanks, between the tail and the hips, where other hadrosaur fossils have shown bite marks.
"If you understand the distribution of these structures in the skin of a prey animal, you can understand something about predator-prey interactions, and it might explain some of the hadrosaur fossils we see with these bite marks, " he said.